Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/244126
Type: Artigo de periódico
Title: Population Dynamics Of Megalobulimus Paranaguensis (gastropoda: Pulmonata) In The Southeast Coast Of Brazil
Author: Miranda
Marcel S.; Fontenelle
Jose H.
Abstract: The population dynamics of Megalobulimus paranaguensis (Pilsbry & lhering, 1900), a large and long-lived land gastropod from Brazil's Southeast (Atlantic Forest) was studied between 2006 and 2009, at an urban park in the city of Santos, state of Sao Paulo. The study included biometry, weighing, and marking and recapture of adult individuals. The variables obtained from specimens were correlated with the environmental variables of the study period. The survival rate of the adult snail population was 96.7%. Recruitment showed several peaks during the year, and was concentrated between April and August, except in 2009, when there was only one peak in August. Specimen abundance progressively increased from 2006 on, with a trend towards relative stability during that period. The condition factor remained relatively stable as well, decreasing from December to February. The potential evapotranspiration and precipitation influenced the number of captures, and the mean temperature influenced the condition factor. Megalobulimus paranaguensis goes through a period of dormancy in the tropical summer, which is between November and February, but remains active in the winter. The survival rate of M. paranaguensis was high, and may be the result of having its annual cycle synchronized with the tropical climate of the Atlantic forest.
Subject: Atlantic Rain-forest
Model Selection
Life-cycle
Snail
Dormancy
Mollusca
Growth
Temperature
Subulinidae
Inference
Country: CURITIBA
Editor: SOC BRASILEIRA ZOOLOGIA, UNIV FEDERAL PARANA
Rights: aberto
Identifier DOI: 10.1590/S1984-46702015000600005
Address: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000600463
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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